Parenthood has pushed Tyra Banks’ relationship with her baby-daddy to the brink of collapse.

Page Six has learned that the first few months with newborn son York Banks Asla have been fraught with unexpected difficulties, and the added stress turned her two-year romance with the father, Norwegian photographer Erik Asla, into a chore.

Family insiders say Asla has gone so far as to tell relatives he’s looking for his own apartment, and those close to him fear the relationship is coming to an end.

Sources said that tensions have been high in the LA mansion where the supermodel lives with Asla, and where they regularly take custody of Asla’s two youngest daughters from his first marriage. We’re told that stressed-out new mom Banks has also sometimes brought her tough TV persona home.

Meanwhile, another source said that the pair are riding out this difficult time. On Independence Day, Asla posted a picture of former “America’s Next Top Model” host Banks wearing an Uncle Sam stovepipe hat, with the caption “Happy 4th of July from our family to yours!”

Insiders told Page Six that the embattled couple continue to work together professionally, and that Asla — who met Banks when he was a guest on Norway’s version of her long-running reality TV modeling contest — even shot promos for her Tyra Beauty cosmetics line in LA on Monday.

In January, Banks revealed that a surrogate had secretly been carrying their baby. The couple posted a picture of a tiny wool hat on Instagram after their child’s birth, with the caption: “The best present we worked and prayed so hard for is finally here. He’s got my fingers and big eyes and his daddy Erik’s mouth and chin. As we thank the angel of a woman that carried our miracle baby boy for us, we pray for everyone who struggles to reach this joyous milestone. York Banks Asla, welcome to the world.”